./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifcompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifcompf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92985165ddadd5833b6dd8db60f80f6054278511 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:57:40,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:57:40,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:57:40,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:57:40,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:57:40,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:57:40,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:57:40,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:57:40,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:57:40,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:57:40,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:57:40,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:57:40,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:57:40,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:57:40,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:57:40,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:57:40,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:57:40,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:57:40,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:57:40,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:57:40,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:57:40,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:57:40,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:57:40,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:57:40,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:57:40,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:57:40,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:57:40,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:57:40,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:57:40,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:57:40,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:57:40,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:57:40,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:57:40,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:57:40,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:57:40,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:57:40,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:57:40,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:57:40,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:57:40,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:57:40,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:57:40,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 23:57:40,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:57:40,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:57:40,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 23:57:40,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 23:57:40,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:57:40,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:57:40,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:57:40,938 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:57:40,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:57:40,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:57:40,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:57:40,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:57:40,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:57:40,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:57:40,941 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:57:40,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:57:40,942 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:57:40,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:57:40,943 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 23:57:40,943 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 23:57:40,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:57:40,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:57:40,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:57:40,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:57:40,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:57:40,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:57:40,945 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 23:57:40,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:57:40,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:57:40,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92985165ddadd5833b6dd8db60f80f6054278511 [2020-11-29 23:57:41,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:57:41,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:57:41,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:57:41,296 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:57:41,297 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:57:41,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/../../sv-benchmarks/c/array-fpi/ifcompf.c [2020-11-29 23:57:41,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/data/6b8c76275/abc5aa6c2ee945ef93e5a27720a505ec/FLAGb42a76652 [2020-11-29 23:57:41,921 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:57:41,922 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/sv-benchmarks/c/array-fpi/ifcompf.c [2020-11-29 23:57:41,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/data/6b8c76275/abc5aa6c2ee945ef93e5a27720a505ec/FLAGb42a76652 [2020-11-29 23:57:42,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/data/6b8c76275/abc5aa6c2ee945ef93e5a27720a505ec [2020-11-29 23:57:42,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:57:42,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:57:42,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:42,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:57:42,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:57:42,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da74fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42, skipping insertion in model container [2020-11-29 23:57:42,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:57:42,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:57:42,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:42,608 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:57:42,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:42,682 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:57:42,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42 WrapperNode [2020-11-29 23:57:42,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:42,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:42,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:57:42,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:57:42,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:42,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:57:42,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:57:42,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:57:42,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:57:42,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:57:42,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:57:42,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:57:42,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:57:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:57:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:57:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:57:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 23:57:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:57:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:57:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:57:43,804 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:57:43,805 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-29 23:57:43,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:43 BoogieIcfgContainer [2020-11-29 23:57:43,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:57:43,809 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 23:57:43,809 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 23:57:43,822 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 23:57:43,823 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:43,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2020-11-29 23:57:43,879 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2020-11-29 23:57:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 23:57:43,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:44,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:57:44,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:57:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-11-29 23:57:44,209 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-11-29 23:57:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:57:44,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:57:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:44,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2020-11-29 23:57:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2020-11-29 23:57:44,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 23:57:44,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:44,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:57:44,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 23:57:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:44,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-29 23:57:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-29 23:57:44,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:57:44,786 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:44,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 23:57:44,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:44,968 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 23:57:44,969 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:57:44,978 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:57:44,978 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:57:44,978 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-29 23:57:45,033 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:57:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 23:57:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:45,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-11-29 23:57:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-11-29 23:57:45,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 23:57:45,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:45,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:57:45,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 23:57:47,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2020-11-29 23:57:47,009 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-11-29 23:57:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:57:47,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:47,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:57:47,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:57:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:47,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2020-11-29 23:57:47,834 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2020-11-29 23:57:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:57:47,835 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:47,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:57:47,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 23:57:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:48,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 28 states and 43 transitions. [2020-11-29 23:57:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2020-11-29 23:57:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 23:57:48,224 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:48,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 33 conjunts are in the unsatisfiable core [2020-11-29 23:57:48,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:48,313 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2020-11-29 23:57:48,315 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,323 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:57:48,325 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,325 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:8 [2020-11-29 23:57:48,452 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 23:57:48,452 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,458 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:57:48,459 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,459 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-11-29 23:57:48,529 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:57:48,710 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-11-29 23:57:48,712 INFO L350 Elim1Store]: treesize reduction 76, result has 62.0 percent of original size [2020-11-29 23:57:48,712 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 140 [2020-11-29 23:57:48,714 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,809 INFO L625 ElimStorePlain]: treesize reduction 112, result has 36.7 percent of original size [2020-11-29 23:57:48,817 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,818 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:54, output treesize:12 [2020-11-29 23:57:48,941 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-11-29 23:57:48,941 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,967 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:57:48,967 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:57:48,968 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2020-11-29 23:57:49,055 INFO L350 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2020-11-29 23:57:49,056 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 32 [2020-11-29 23:57:49,057 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:57:49,068 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:57:49,070 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 23:57:49,070 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:28 [2020-11-29 23:57:49,435 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:57:49,443 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:57:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:57:54,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:57:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2020-11-29 23:57:54,475 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2020-11-29 23:57:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 23:57:54,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:57:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:54,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:57:54,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:58:01,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:01,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 46 states and 67 transitions. [2020-11-29 23:58:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2020-11-29 23:58:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 23:58:01,085 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:01,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:58:01,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:58:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 23:58:02,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 47 states and 67 transitions. [2020-11-29 23:58:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-29 23:58:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 23:58:02,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:02,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:58:02,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:58:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-29 23:58:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:02,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 48 states and 68 transitions. [2020-11-29 23:58:02,955 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2020-11-29 23:58:02,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 23:58:02,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:03,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:03,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:03,406 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2020-11-29 23:58:03,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 11:58:03 ImpRootNode [2020-11-29 23:58:03,457 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 23:58:03,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:58:03,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:58:03,458 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:58:03,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:43" (3/4) ... [2020-11-29 23:58:03,461 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:58:03,556 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a5226683-66f5-415e-a05d-738c05507f30/bin/ukojak/witness.graphml [2020-11-29 23:58:03,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:58:03,558 INFO L168 Benchmark]: Toolchain (without parser) took 21283.54 ms. Allocated memory was 98.6 MB in the beginning and 283.1 MB in the end (delta: 184.5 MB). Free memory was 67.9 MB in the beginning and 138.0 MB in the end (delta: -70.1 MB). Peak memory consumption was 114.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:03,559 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 81.8 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:58:03,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.10 ms. Allocated memory is still 98.6 MB. Free memory was 67.7 MB in the beginning and 74.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:03,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.79 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 73.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:03,566 INFO L168 Benchmark]: Boogie Preprocessor took 48.27 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:03,567 INFO L168 Benchmark]: RCFGBuilder took 1025.05 ms. Allocated memory is still 98.6 MB. Free memory was 71.9 MB in the beginning and 66.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:03,568 INFO L168 Benchmark]: CodeCheck took 19648.67 ms. Allocated memory was 98.6 MB in the beginning and 283.1 MB in the end (delta: 184.5 MB). Free memory was 66.3 MB in the beginning and 142.2 MB in the end (delta: -76.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:03,569 INFO L168 Benchmark]: Witness Printer took 99.05 ms. Allocated memory is still 283.1 MB. Free memory was 142.2 MB in the beginning and 138.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:03,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.5s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13312 SDtfs, 5024 SDslu, 0 SDs, 0 SdLazy, 40130 SolverSat, 18826 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1599 GetRequests, 1332 SyntacticMatches, 43 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24605 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 152 ConstructedInterpolants, 5 QuantifiedInterpolants, 10068 SizeOfPredicates, 36 NumberOfNonLiveVariables, 1196 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 62/95 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L30] long long *c = malloc(sizeof(long long)*N); [L32] i=0 VAL [N=3] [L32] COND TRUE i